Iphone 设置进度仅在asi http请求自定义进度跟踪中提供0和1值

我想在ASIHttprequest库上显示下载进度条（HUD进度条）。 我尝试了这个

[request setDownloadProgressDelegate:loadingHUD]；
[请求设置ShowAccurateProgress:是]；
[请求setDelegate:self]；

但没有运气，它在开始时显示为空白，在结束时直接显示全部进度。 所以我记录了进度值，得到了

set progress0.000000 set progress1.000000

如何获得HUD进度条的准确进度更新

我将Json和数据一起发送到我的服务器，服务器验证是否正确，如果可以验证，则返回视频数据作为响应。我想将该响应存储到视频文件中，所以我使用这个

这是我的密码

loadingHUD = [MBProgressHUD showHUDAddedTo:self.view animated:YES];
loadingHUD.labelText = NSLocalizedString(@"Downloading", nil);
loadingHUD.mode=MBProgressHUDModeAnnularDeterminate;
[loadingHUD showWhileExecuting:@selector(verifyReceipt:) onTarget:self       withObject:transaction animated:YES];
// call the verify receipt method and download the file
 [[SKPaymentQueue defaultQueue] finishTransaction: transaction];
     }
 - (void)verifyReceipt:(SKPaymentTransaction *)transaction {
 // string to NSdictionary and dictioanry to json string

NSArray *mainObjects = [NSArray arrayWithObjects:vendorId,deviceData,productID,nil]; // purchased Item ID of previous item
NSArray *mainKeys = [NSArray arrayWithObjects:@"ID",@"device",@"video",nil];
NSDictionary *mainDictionary = [NSDictionary dictionaryWithObjects:mainObjects forKeys:mainKeys]; // final string of data
NSLog(@"Json Main dict created");
      NSString *sandBox=@"1";
   NSArray *testobj = [NSArray arrayWithObjects:mainDictionary,receiptDataEncoded,sandBox,nil]; // purchased Item ID of previous item
  NSArray *testkey = [NSArray arrayWithObjects:@"data",@"receiptData",@"sandbox",nil];
  NSDictionary *testdict = [NSDictionary dictionaryWithObjects:testobj forKeys:testkey];         // final string of data
  NSLog(@"Json Main dict created");


  NSError *error;
  NSData *jsonData = [NSJSONSerialization dataWithJSONObject:testdict options:NSJSONWritingPrettyPrinted error:&error];
  NSString *resultAsString = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
  NSLog(@"Purchase product Json string:\n%@", resultAsString);

 ASIFormDataRequest *request = [ASIFormDataRequest requestWithURL:[[NSURL alloc] initWithString:@"http://testing.test.io/dev.php/video/verifyReceipt"]];


//[request setDidReceiveDataSelector:@selector(request:didReceiveBytes:)];
[request setPostValue:resultAsString forKey:@"verify"];
[request setDidFinishSelector:@selector(requestDone:)];
[request setTimeOutSeconds:120];
[request setNumberOfTimesToRetryOnTimeout:2];
// request.showAccurateProgress=YES;
 [request setDownloadProgressDelegate:loadingHUD];
 [request setShowAccurateProgress:YES];
 request setDelegate:self];
 //[request setDownloadProgressDelegate:self];

 // SAVED video PATH
 // Get the Document directory
 NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
 // Add your filename to the directory to create your saved pdf location
 NSString *movLocation = [documentDirectory stringByAppendingPathComponent:[fileName st ringByAppendingString:@".mov"]];

  // TEMPORARY video PATH
  // Get the Caches directory
   NSString *cachesDirectory = [NSSearchPathForDirectoriesInDomains(NSCachesDirectory, NSUserDomainMask, YES) lastObject];
  // Add your filename to the directory to create your temp pdf location
  NSString *tempMovLocation = [cachesDirectory stringByAppendingPathComponent:[fileName stringByAppendingString:@".mov"]];

 // Tell ASIHTTPRequest where to save things:
 [request setTemporaryFileDownloadPath:tempMovLocation];
 [request setDownloadDestinationPath:movLocation];
 [request startSynchronous];

NSLog(@"Path is %@",movLocation);
   }

- (void)setProgress:(float)progress1
    {
[loadingHUD setProgress:progress1];
NSLog(@"set progress%f",progress1);
     }

   - (void)requestDone:(ASIHTTPRequest *)request{
//[MBProgressHUD hideHUDForView:self.view animated:YES];

  if(request.responseStatusCode==200)
   {
    //BOOL success = [videoData writeToFile:movLocation atomically:NO];
   // NSLog(@"bool value is%d",success);
    NSLog(@"in request done sucsessfully downlaod and store in database %d",request.responseStatusCode);
    [DBHelper savePurchaseId:fileName];
    [self movieReceived];
       }
     else{

     NSLog(@"in request downlaod and store in database failed %@",request.responseHeaders);

 }
  }

     -(void)requestFailed:(ASIHTTPRequest *)request
   {

  NSLog(@"%@",request.error);

    }

如果我使用didreceivebytes，我的文件将无法下载

-(void)request:(ASIHTTPRequest *)request didReceiveBytes:(long long)bytes {
 NSLog(@"Received bytes:%lld",bytes); progress = 0.0f; if (progress < 1.0f)

 {
     progress = ((float)bytes) / 469690;
     NSLog(@"progress value is %f",progress);
     loadingHUD.progress = progress;
 }

-（void）请求：（ASIHTTPRequest*）请求didReceiveBytes:（long-long）字节{
NSLog（@“接收字节：%lld”，字节）；进度=0.0f；如果（进度<1.0f）
{
进度=（（浮点）字节）/469690；
NSLog（@“进度值为%f”，进度）；
loadingHUD.progress=进度；
}

}

---

非常感谢您的帮助

我使用afnetworking解决了这个问题 以及在字典中重新记录setparameterencoding和添加post值

  NSString *documentDirectory = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
// Add your filename to the directory to create your saved pdf location
NSString* destPath = [documentDirectory stringByAppendingPathComponent:[fileName stringByAppendingString:@".mov"]];

NSURL *url = [NSURL URLWithString:@"http:/testing.io"]; // 
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:url];
// [httpClient setParameterEncoding:AFJSONParameterEncoding];// no need of this line remove 

NSMutableURLRequest *request = [httpClient requestWithMethod:@"POST" path:@"dev.php/video/verifyReceipt" parameters:postRequest]; // /dev.php/video/verifyReceipt
NSLog(@"postRequest: %@", postRequest);

AFHTTPRequestOperation *operation = [[AFHTTPRequestOperation alloc] initWithRequest:request];

operation.outputStream = [NSOutputStream outputStreamToFileAtPath:destPath append:NO];

[operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject)
 {
     // Give alert that downloading successful.
     NSLog(@"Successfully downloaded file to %@", destPath);


     // [self.target parserDidDownloadItem:destPath];

     HUD.detailsLabelText = [NSString stringWithFormat:@"%@ %i%%",@"Downloading",100];
     [HUD hide:TRUE];

     [DBHelper savePurchaseId:fileName];
     [self movieReceived];

 }
                                 failure:^(AFHTTPRequestOperation *operation, NSError *error)
 {
     // Give alert that downloading failed
     NSLog(@"Error: %@", error);

     // [self.target parserDidFailToDownloadItem:error];
     [HUD hide:TRUE];

 }];
[operation setDownloadProgressBlock:^(NSUInteger bytesWritten, long long totalBytesWritten, long long totalBytesExpectedToWrite)
 {
     // Progress
     float totalProgress = (totalBytesWritten / (totalBytesExpectedToWrite * 1.0f) * 100);
     HUD.detailsLabelText = [NSString stringWithFormat:@"Downloading %i%%", MIN((int)(totalProgress), 99)];
 }];
[operation start];

---

}

您以前也发布过类似的问题，我已经回答了。你试过了吗？@Adithya我的问题没有解决，这就是为什么你得到了我提供的解决方案？@Adithya我解决了我的问题。这是因为两个原因。第一个是在Asithtep中，我正在使用setpostvalue和afnetworking，我在ndDictionAnry中添加该post值，第二个是删除[httpClient SetParameterEncode:AFJSonParameterEncode]；在afnetworking中